Mobile suction-cleaner apparatus.



C. D..v LANNING.

MOBILE SUGTION CLEANER APPARATUS.

APPLICATION FILED NOV. 24. 1916.

Patented May 2l, 1918.

3 SHEETS-SHEET l.

nm mm um. m

C. D. LANNING.

MOBILE SUCTION CLEANER APPARATUS.

APPLICATION FILED Nov. 24. 191e.

1,267,348. Batented May 21,1918.

3 SHEETS-SHEET 2L FW., E.

C. D. LANNING.

MOBILE SUCTION CLEANER APPARATUS.

APPLICATION FILED Nov. 24. IsIs.

1,267,348. Patented May 21,1918.

3 SHEETS-SHEET 3.

"erica CHARLES D. LANNING, 0F BOSTON, MASSACHUSETTS.

MOBILE SUCTION-GLEANEB APPARATUS.

Specification of Letters Patent.

Patented May 21, i918.

Application led November 24, 1916. Serial No. 133,238.

To all rwhom t may concern.'

Be it known .that I, CHARLES D. LANNING, a citizen of the United States, and a resident of Boston, in the county of Suffolk and State of Massachusetts, have invented an Improvement in Mobile Suction-Cleaner Apparatus, of which the following description, in connection with the accompanying drawings, is a specification, like characters on the drawings representing like parts,

This invention relates to cleaner apparatus of the mobile type and preferably having motor driven suction or vacuum means.

In order that the principle ofthe invention may be readily understood, I have disclosed a single embodiment thereof in the accompanying drawings, wherein Figure 1 is a view partly in side elevation and partly in vertical section of a mobile suction cleaner apparatus embodying my invention; A

Fig. 2 is a view of said apparatus mainly in vertical transverse section with part of the base in elevation; and

Fig. 3 is a plan view of said apparatus.

My invention relates to suction apparatus for cleaning purposes and particularly to suction creating and dirt separating and collecting means' as distinguished from terminal or Hoor tools used with such apparatus. More specifically my invention relates to such apparatus of the sort that is designed to be freely movable about the ioor as part of or in Vconnection with the cleaning work being performed, and to that end the apparatus is desirably light and compact, in

order to facilitate its convenient removal from place to place and its free movement about the licor in operation. More specilically my invention relates to that type or form of suction apparatus in which the suc- -tion creating device acts directly upon the suction intake devices, discharging the dustladen air into and through means to screen the air and collect and retain the air-contained dust or dirt.

In that specific type of my invention herein illustrated, I providea novel and compact arrangement of the necessary elements, whereby a dirt receptacle and air screen are provided as separately removable elements with the dirt receptacle arranged for quick detachment from the main base portion without other adjustment or change in the apparatus, and wherein also the air screen is reliably secured to but quickly detachable from the dirt receptacle, the arrangement being such that the dirt receptacle and the air screen are positioned and connected to be most efficient in operation and to allord great convenience in use, while retaining the desired lightness and compact ness of this specific type of suction cleaner Y apparatus.

To' this end, I preferably so construct the apparatus that itis freely mobile about the ioor under the draft of a flexible intake hose connecting 'a terminal intake tool with the intake orifice of the fan casing, the dirt receptacle being preferably supported above and connected to the outlet of the fan casing.

Inasmuch as it is important to provide a mobile apparatus that ma be readily trailed about a room without lia ility of overturning, I have provided a structure ,having a widely extended support and preferably a three point support so constructed that substantially all parts of the apparatus fall within a triangle joinin the three points of support. Not only do .preferably provide such a construction, but the parts mounted upon the base or support are so arranged or are mainly so arranged that they fall Within a pyramid that is described by a triangle constituting the base of the pyramid and connecting the three points of support, and the apex of which may roughly be described as the top of the air screen when the latter is distended. Moreover the operative parts of the apparatus are positioned low as hereinafter set forth to overcome liability of overturning, and the connection of the suction hose is preferably made suiliciently low to permit the ready drawing or pushing of the a paratus about by movements of the suction ose.

Referring more particularly to the drawings, I have in the several igures representv4ed a fan casing 1 which preferably is'vertically positioned so as to bring its weight Well within the basal support. Formed with or secured to the lower part ofthe fan casing are two roller supporting members 2, 3, herein s hown as secured by bolts -it to said fan casing. The outer ends of said members 2, 3 are provided with vertical sockets or openings 5-5 having mounted therein swiveling members 6 6 of two roller-like devices 7 7 which may be casters or other suitable rolling members. Each of said members 7 7 is provided with a transverse axle 8 8 mounted in a yoke 9 9 forming a portion of vthe swiveling members 6 6, and viewing 13 which is preferably electrical, and whichv is connected lby suitable flexible wiring to any source of electrical supply. Preferably the motor and its casing are horizontally arranged, thus keeping the weight thereo low and assisting in preventing accidentaloverturning of the apparatus.

A third point of support is yrovided, and preferably by vsecuring to or ot erwise forming rigid with the motor casing 12, a rearwardly and downwardly extending leg or foot 14, at the end 15 of which is mounted a roller like member 16 which, as clearly shown in Fig. 1, is not swiveled, as are the front roller members 7 7, but which turns only upon its horizontal axis '15.

The length of the members 2, 3 and 14 is such and the construction and arrangement of the fan casing and motor casing with reference to said roller supports are such that the apparatus cannot readily be overturned, and viewin Fig. 3, it will be noted that the parts thus 'ar described are positioned within a triangle formed by lines joining the roller members 7--7 and 16.

' The two forward roller members 7-7 are in a. transverse line that is at right angles to the line of draft, while the rear roller member 16 is in the line of draft and pref-4 erably also in line with the shaft of the fan casing and vmotor casing. I have found that this arrangement provides a most efficientvform of mobile apparatus and particularly one that may be readily shifted either to the right or to the left about the y roller member 16, as well as moved backward and forward in the line of draft.

The casting 10 of the fan casing is provided with a bearing portion 17 having therein a sleeve 18 in which is mounted a shaft 19 to the inner end of which is secured a hub 20 having the spokes 21 of a fan, the blades whereof are indicated at 22 and which may be of any suitable construction. Also ed with the fan casing in axial line with supports 7-7 and 16.

Lae'aeee the shaft 19. I have herein represented the fan vcasing 1 as having a laterally extending opening 26 of relatively wide area, to which is connected a removable spout 27 in any suitable manner and preferably by a bayonet joint connection 28-28. The outer end of the spout 27 is contracted as shown at 29 and preferably is provided with an annular swell 30, over which the rubber hose 25 fits and is tightly held. l Thisprovides means for quickly and yet securely attaching the hose 25 to the said spout. The spout 27 is removabile and is so constructed that it may be readily positioned upon the air outlet of the fan chamber for blowing, if desired.

In carrying out my invention I preferably provide means for collecting and holding the dirt in a separate, rigid, imperforate chamber having 'a quick-detachable dust-proof connection to the main portion of the apparatus, and I also provide an air screen having a quick-detachable dust-proof connection to the dirt chamber.

Herein for the purpose I have represented the fan casing 1 as having upwardly extending therefrom an outlet passage 31. In Fig. 2, I have represented said otlet passage 31 as upwardly extending from one side of the fan casing, but if desired I may so construct the `fan casing that thepas- -sage 31 upwardly extends from the top or c trally positioned over the fan casing, and

its weight is thus brought substantially centrally with respect to the three roller-like l In either case, I provide a dirt chamber 32 which is preferably metallic and is rigid and imperforate. The said chamber has a quick-detachable, dust-proof connection with the walls of the passage 31, and for that purpose I have represented the said chamber 32 as having formed therewith or secured thereto a downwardly extending, substantially centrally positioned, collar or sleeve-like member 33 having a bayonet joint connection with the walls of said passage 31. Herein for the purpose I have represented said collar or sleeve portion as having opposite bayonet slots 34 engaging pins 35 laterally extending from the walls of said passage 31. In order to render the connection wholly dust-proof, I provide any suitable means, as for example a packing 36 between the upper edge of the walls of the passage 31 and the collar or sleeve-like member 33.

Preferably the dirt chamber 32 has an upwardly extending tubular portion 37 in alinement with the passage 3l, and the upper end thereof is provided with suitable means permitting the passage, ofv dirt or dust and preventing its return tol the fan. For this purpose I have represented a valve or clapper 38 pivoted at 39.

:incassar VUpon the dirt receptacle 32 I'positionan air screen preferably in the form. of a clothsented a rigid ring 40 adapted to be fitted upon the upper edge of the receptacle 32 and herein shown as having vin 1ts lower edge an annular groove 41 receiving the upper rim of said receptacle and having a packing' ring l1:2-rendering the construction` entirely dust-proof. While in order to connect the ring 40 with the receptacle 32, I may provide any .suitable means, I have preferably at opposite sides ofthe receptacle 32 provided locks herein represented as disks 43 eccentrically pivoted at 44 to lateral projections 45 upon the receptacle 32. Mounted upon the disks 43 are annular members 46 formed with the upper portion of each of which is a hook 47 adapted to engage a lug 48. Each disk 43 is provided with one or more substantially radial pro- -jections 49 and a handle 50, the said pro-` jections 49 being adapted alternately to engage an inwardly extending lug 51 upon the annulus 46. The construction and relation of parts are such that when the disk 43 is rotated in a clockwise direction, viewing Fig. 1, the hook 47 is swung forwardly or to the right, viewing Fig. l, and then downwardly into engagement with the lug 48, thus locking the ring 40 to the upper edge of the receptacle 32. The rotation of each disk 43 contraclockwise lifts each hook 47 from its lug 48 and moves it rearwardly viewing Fig. 1.

The bag or air screen 39 may be connected vin any sultable manner to the ring 40, preferably providin a quickly detachable connection. For t 's' purpose, I have represented the ring 40 as having in its inner wall an annular recess 52, wherein is positioned a packing ring 53, herein shown as vertically positioned and receiving thereagainst an outwardly acting spring ring 54 which is preferably' permanently connected to the lower edge of the bag 39 as by providing a suitable hem.

The mounting and positioning of the mouth of the bag 39 are such that all the dust or dirt is compelled to fall into the receptacle 32, and while the bag 39 may be readily separated from the dlrt receptacle 32 by unlocking the rigid rin 40, the said bag 39 cannot be readil torn om the flexible ring 54 because of the overhanging horizontal wall 55 of the said rigid ring 40.

- angle theretov without necessity of touching movement about' the floor by lpushing or dragging without any liability of overturnlng, and may as desired be readily noved either in a straight line direction or at any the body of the apparatus, but merely by proper movement of the hose 25.

The-dirt collecting chamber 32 is preferably vertically positioned with respectto the fan casing 1 and is preferably interposed between the fan and the air Screener ba 39.

After the apparatus has been used an the motor has been stopped, the dirt receptacle 32v may be quickly .detached from the walls of the passage 31, and by shaking or lightly beating upon the bag 39 all the dirt clinging to the innersurface of the latter is at once deposited in the receptacle 32. Because of the valve 38, there is no possibility of dirt or dust being discharged rdownwardly through the upwardly extending tubular member 37. When it is desired to empty the d11't receptacle 32, the bag 39 is detached from said receptacle by unlocking the ring 4Q therefrom as hereinbefore descrlbed. The d1rt and dust may then bepoured from the receptacle 32 and the latter quickly replaced upon the upper end of the assage 31.

I am aware that it has en proposed to provide a suction cleaner apparatus with a wheel or mobile support, but so far as I am aware I am the rst to provide an apparatus of the character described with a roller like support as herein set forth and which may be moved readily not 'only in a straight line but at any angle thereto without liability of overturning and by a pulling or pushing movement upon the hose connection. It will, of course, be understood that certain features of my invention, and particularly those 103 pertaining to the dirt receptacle 32 and the bag 39, may be employed in apparatus not of the mobile character herein described, but preferably the apparatus is equipped with the several features herein set forth. The 11@ provision of a three pointroller base with'I two front vertically pivoted rollers positioned in a line at rlght angles to the longitudinal line of the apparatus and forward of the body thereof, and the inner fixed 113 roller at the rear of the apparatus, secures an effective arrangement for carrying into effect one of the important objects of my invention. rIhe apparatusis thus permitted to run freely over uneven surfaces and turns 120 or swings freely about the single rear roller, the spreading of the end rollers rendering the apparatus immune against any tendency to capsize. In this specific form of apparatus shown with the arrangement of the fan 123 casing in a vertical plane and the arrangement of the motor and its casing in a horizontal plane at the rear of the fan casing, the three point support` gives a most eilcient and reliable mounting, permitting free trail- 18d ing about the floor over the edges of rugs,

etc., and eliminates all tendency to capsize even under av sharp turning movement given ply changing the line of draft of the intake ose.

That embodiment of the invention herein shown gives as light a construction as is practical, so that not only may the apparatus be readily trailable about the Hoor, but also so that in movin from place to place, there is a limited welght to transfer. To this end, I have effected a marked lightness of motor construction, and I have disclosed means whereby if desired cooling of the motor may be effected. In Fig. l, I have represented a motor cooling fan 55 fast1 upon the shaft 19, and in proximity thereto I have provided three equally spaced ventilating openings 56. The arrangement is such that the cooling fan 55 moves air through the motor casing without operative relation to the main fan. To insure the circulation of air through the motor, I may and preferably do provide openings 57, herein -shown as four in number and equally spaced about the end of the motor casing 12. I may if desired further simplify the disclosed construction while retaining the desired lightness of the motor, and may do so'by joining the motor casing 12 to the fan casing 1 without openings at the juncture and by providing small openings from the motor shell inclosed space'into the main fan casing, positioned near thecenter of the main fan. l

By providing openings of appropriate size a small volume of air is moved by the main fan in and through the space inclosed by the motor shell and without detrimental effect' upon the main suction efficiency of the large fan 22.

As hereinbefore described I have disclosed an embodiment of my invention wherein is provided a separate rigid ring having means for quick-detachable, dust-tight connection to the dirt receptacle, and a iexibletextile air screen arranged coperatively with said rigid ring, so that the air screen has a separate, quick-detachable, dust-tight connection to the said ring. I may, however, dispense with vthe said separate ring and provide the dirt receptacle at its upper end with means for the direct attachment of the air screen thereto. While for this purpose any suitable means may be provided, I preferably provide -said dirt receptacle at its upper end with an inwardly turned lip, so that the spring ring in the lower part of the air sci-een may be sprung in and under such lip, giving a direct connection of the air screen to the dirt receptacle. In such form of construction I preferably provide the dirt receptacle at one point (and preferably immediately under such described lip) with a bayonet lock in pivoted or sliding member that may be posithe form of a short slot arranged outwardly on, proximate to and parallel with the upper edge of the dirt receptacle and having a relatively narrow throat cut upwardly through the upper portion of the dirt receptacle and said 11p. In such case, the spring ring of the ldirt bag is provided with two outwardly projectin members at or near the ends thereof and w ich protrude outwardly through the air screen.

By manually engaging the projecting. members and drawing them together, the sprin ring-is' detracted so that it may be passe through and under the described inwardly projecting lip of the dirt receptacle, said projecting members being passed downwardly through the throat and re leased in the slot, thus spreading the spring ring and holding the 'lower edge of the air screen spread and under tension outwardly against the inner wall of the dirt rece tacle and u against the lower surface o said lip. f such construction be provided, I may in conjunction therewith, employ a tioned partially or wholly over the described connection of the said ring and the upper portion of the dirt receptacle.

Viewing Figs. 1 and 3, it will be observed that the mounting for the receptacle is in the form of an isosceles triangle having Athe short side forward, that is, nearest the air inlet and cutting the intake pipe 25. This construction gives a more effective and satisfactory lineal trailin of the apparatus than if the base thereo were in the form of an equilateral triangle, or were in the form of an isosceles triangle having one side longer than the other two, such longer side being forward and cutting the intake i e 25., p aving thus described one illustrative embodiment of my invention, I desire it to be understoodthat although specific terms are employed, they are used 1n a generic and descriptive sense and not for purposes of limitation, the scope of the invention being set forth in the following claims.

laines:

1. In suction cleaner apparatus, the combination of a base embodying suction means, and an inclosing casing having a suction inlet and a discharge outlet with the latter arranged to discharge substantially vertically upward, a dirt receptacle arranged 120 substantially vertically and having a dusttight, detachable mounting on said discharge outlet, said receptacle having an airreceiving throat registering with said outlet, and an air screening device having a dusttight, detachable connection to said receptacle.

2. In suction cleaner apparatus, the combination of a base having'suction means, a suction device inclosing casing having a suc- 180 tion inlet and a discharge outlet, a dirt receptacle having a dust-tight detachable mounting on said discharge outlet, sald receptacle having an air receiving throat registering with said discharge outlet, and an air screening device having a dust-tight, detachable connection to the sald receptacle.

3. In suction cleaner apparatus, the combination of a base having suction means, a suction-means inclosing caslng having a suction inlet and a discharge outlet, a dirt receptacle having a dust-tight, quick-detachable mountingon said discharge outlet and permanently wholly exposed for quick removal, said receptacle having an air receiving throat registering with sa1d discharge outlet, and an air screening devlce having a dust-tight, quick-detachable connection to the said dirt receptacle.

4. In suction cleaner apparatus, the combination of a base embodying suction means,

and a suction-means inclosing casing'hav-' ing a suction -inlet and a discharge outlet with the latter arranged to'discharge substantially upward, a dirt receptacle arranged substantially vertically and having a. dust-tight, quick-detachable mounting on said discharge outlet, said receptacle having an air-receivlng throat registering with said outlet, and an air screening device having a dust-tight, quick-detachable connection to said receptacle and arranged to be distendd above said receptacle by thev discharged air.

5. A suction cleaner apparatus, in combination, a base structure having means to suck the air in and discharge it through an outlet, a dirt receptacle having a dust-tight and quick-detachable connection to the outlet a screen holding ring having a dusttigllt and quick-detachable connection to the said dirt receptacle, and an air screen having a dust-tight connection to the said ring, said ring being provided with an annular recess registering with the upper edge of the dirt receptacle and having a compressible packing therein, and coperative members of the clamping mechanism carried by said ring and dirt receptacle respectively and arranged to clamp the said ring firmly against the said upper edge of the receptacle.

6. A suctlon cleaner apparatus having a dirt receptacle, an air screen composed of woven fabric, dust-tight and quick-detachable means arranged to connect said screen to said dirt receptacle comprising an outwardly expanding spring ring, and a member having. an annular pocket to receive said ring, said receptacle having a circular seat to receive said annular pocketed member.

7. A suction cleaner apparatus having a dirt receptacle, an air screen composed of woven fabric, dust-tight and quick-detachable, connecting means arranged to connect said screen to said dirt receptacle comprising a rigid ring having an annular recess upon its under face to engage the upper edge of said receptacle and also having an annular, inwardly facing pocket, packing wlthm said pocket, and a spring rlng arranged within said pocket and ca rlng outward against said packing, sald spring ring bemg connected with said resilient, woven fabric, air screen.

8. In suction cleaner apparatus, the combination', a base structure having means to suck the air in and discharge it through an outlet, a dirt receptacle having a dust-tight and quick-detachable connection directly with the said air outlet, a screen-holding ring having a dust-tight and quick-detachable connection to said dirt receptacle, and an air screen having a dust-tightconnection to said ring.

9. In suction cleaner apparatus, in combination, a` suction device, a motor connected thereto, a casing incloslng said 'suction device and having a suction inlet and a discharge outlet, a dirt receptacle positioned wholly externally to said casing and having a dust-tight and quick-detachable connection to the said discharge outlet, a screen holding ring having a dust-tight and quickdetachable connection to said dirt receptacle, and an air screen having a dust-tight, quick-detachable connection to said ring.

10. A suction cleaner apparatus having a fan and fan casing, a motor attached to said fan casing, a dirt receptacle mounted upon said fan casing, a ring mounted upon the upper end of said dirt receptacle, an air screen connected to said ring, and means to-lock said rin'g to said receptacle, said means including one or more eccentrically mounted disks and surrounding ann ular members having hooks to engage said ring.

11. A suction cleaner apparatus comprising in combination a base, air impelling means and a casing therefor mounted on said base, said casin having an air dirt admission opening and openings bein of the same size, and a spout adapted .to be interchangeably mounted about either .of Said openings.

. 12. A suction cleaner apparatus comprising in combination a base, air impelling means and a casing therefor mounted on said base, said casing having an air and dirt admission opening and an exit opening, and a spout -adapted to be interchangeably mounted about either of said openings.

13. A suction cleaner apparatus comprising in combination, air impelling means, a basal support therefor, a dirt receptacle detachably secured to the air outlet of the fan casing, a separate, iexible, textile, air screen, and means for detachably sec said air screen to the dirt receptacle, said means comprising a ring having an .inwardly extending lip, Said nag an ent opening, said packin mounted circumferentially at the upper end of the dirt receptacle, and an outwardly expanding spring arranged in the lower part of said air screen and adapted to press the latter outwardly under said lip and against said ring. v

14. A suction cleaner apparatus comprising in combination, air impelling means, a basal support therefor, a dirt receptacle detachably secured to the air outlet of the fan casing, a separate, flexible, textile fabric, a1r screen, and means for detachably securing said air screen to the dirt receptacle, said means including a ring'having a circumferential groove and a resilient packing arranged therein and having an inwardly exposed face, and a spring ring adapted to enter said circumferential groove and press the lower part of the Iair screen outwardly against said packing.

15. A suction cleaner apparatus comprisin in combination, air impelling means, a basal support therefor, a dirt receptacle secured to the air outlet of the fan casing a separate, fiexible,textile, air screen, an means for detachably securing said air screen to the dirt receptacle, said means comprising a ring having an inwardly extending lip, said ring being mounted circumferentially at the upper end of the dirt receptacle, and an outwardly, expanding spring arranged in the lower part of said air screen and adapted to press the latter outwardly under said lip and against said rlng.

16. A suction` cleaner apparatus comprising in combination, air impelling means, a basal support therefor, a dirt receptacle secured to the air outlet of the fan casing, a separate, flexible, textile fabric, air screen, and means for detachably securing said air screen to the dirt receptacle, said means including a ring having a circumferential vgroove and a resilient packing arranged therein and having an inwardly exposed face, and a spring ring adapted to enter said circumferential groove and press the lower part of the air screen outwardly against said 17. 1g suction cleaner apparatus comprising 'in combination, air impelling means, a basal support therefor, a dirt rece tacle secured to the air outlet of the air impelling means, a separate, iexible, textile, air screen, and means for detachably securing Said air screen to the dirt receptacle, said means comprising an inwardly extendingv lip, said ring being mounted circumferentially at the upper end of the dirt receptacle, an outwardly expanding ring arranged in the lower part of said air screen and adapted to press the latter outwardly under said lip and against said ring, said rin having an annular groove in its under slde to receive the upper end of the dirt receptacle.

neem-is 18. A suction cleaner apparatus comprising in combination, air impelling means, a

basal support therefor, a dirt receptacle seyy cured to'the air outlet of the air impelling means, a separate, flexible, textile, air screen, and means for detachably securing said air screen to the dirtreceptacle, said means comprising an inwardly extending lip, said ring being mounted circumferentially at the upper end of the dirt receptacle, an outwardly extending ring arranged in the lower part of said air screen and adapted to press the latter outwardly under said lip and against said ring, and means to lock said ring to said receptacle.

19. A suction cleaner apparatus comprising in combination, a base having air impelling means-21,22, a casing 1, 12 therefor, said casing 1, 12 having an upwardly extending discharge passage 31, a dirt receptacle 32 permanently wholly exposed, a ring 40 detachably secured to the upper part of said dirt' receptacle, and a flexible bag 39 having a detachable connection with said ring 40.

20. A suction cleaner apparatus comprising in combination, air impellng means 21, 22, a casing 1, 31 therefor having a discharge orifice directed vertically upward, a tubular extension 37, a dirt receptacle 32 detachably fitted upon said discharge and surrounding said tubular extension 37, a valve 38 closing said tubular extension 37, a ring 40 detachably connected to the upper edge of said receptacle 32, and a flexible bag 39 detachably connected to said ring.

21. In suction cleaner apparatus, the combination of a base embodying suction means and an inclosing casing having a suction inlet and a discharge outlet with the latter arranged to discharge substantially vertically upward, a dirt receptacle arranged substantially vertically and having a dusttight, quick-detachable mounting on -said discharge outlet, said receptacle being permanently, wholly exposed for quick removal from said discharge outlet and having an air receiving throat registering with the outlet and also provided with a valve inlet 'device arranged to be held open by the air discharged from the suction means, and an air screen device having a dust-tight, quick-detachable connection vto said receptacle.

22. In suction cleaner apparatus, the combination of a base embodying suction means and a suction-means inclosing casing having a suction inlet and a discharge outlet with the latter arranged to discharge substantially upward, a dirt receptacle arranged substantially vertically and having a dust-tight quick-detachable mounting on said discharge outlet, said receptacle being permanently, wholly exposed for quick removal from said discharge outlet and havlll ing an air receiving throat registering with said outlet and provided with a valve inlet device arranged to be heldv open by the air discharged from the suction means, and an air screen device having a dust tight, quick-detachable connection to said receptacle and arranged to be distended above said receptacle by the discharged air.

23. In suction cleaner apparatus, the combination of a base embodying suction means and a suction means inclosing casing having a suction inlet and discharge outlet with the latter arranged to discharge substantially upward, a dirt receptacle arranged substantially vertically and having a dust-tight quick-detachable mounting on said discharge outlet, said receptacle being permanently, Wholly exposed for quick removal from said discharge outlet and having an air receiving throat registering With said outlet, and an air screen device having a dust-tight, quiclodetachable connection to said receptacle and arranged to be distended above said receptacle by the discharged air. In testimony whereof I have signed my name to this specification. A

CHARLES D. LANNING. 

